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vaccination — news, coverage & facts — IJR

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vaccination — SELF Magazine · CC BY 2.0

Topic

vaccination

administration of a vaccine to protect against disease

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Also known as vaccinated

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Facts from Wikidata (CC0). Image via Wikimedia Commons (CC BY 2.0).

Overview

Vaccination is the administration of a vaccine to help the immune system develop immunity from a disease. Vaccines contain a microorganism or virus in a weakened, live or killed state, or proteins or toxins from the organism. In stimulating the body's adaptive immunity, they help prevent sickness from an infectious disease. When a sufficiently large percentage of a population has been vaccinated, herd immunity results. Herd immunity protects those who may be immunocompromised and cannot get a vaccine because even a weakened version would harm them.

From Wikipedia (CC BY-SA 4.0).

Notable quotes

“It is courage based on confidence, not daring, and it is confidence based on experience.”
— Jonas Salk, on testing his vaccine against polio on himself, his wife, and his three sons (9 May 1955)
“Vaccines not only protect individual children from measles, but also contribute to community immunity, protecting those who are unable to be vaccinated due to medical reasons.”
— Robert F. Kennedy, Jr., ROBERT F. KENNEDY JR.: Measles outbreak is call to action for all of us", Fox News (March 2, 2025)

Quotes via Wikiquote (CC BY-SA), each with its original source.